1.	Simplify 1 Simplify the following expression: $$ \left(-2(-4) - -3\times5\right)2\left(1 - -3\right) $$ Correct Answer $$ 184$$ or 184.000

2.	Simplify 2 Simplify the following expression: $$ \frac{-4\times4 + \frac{3}{3}}{2\left(6 - 1\right)} $$ Correct Answer $$ \frac{-3}{2}$$ or -1.50000

3.	Fractions 1 Simplify the following expression: $$ \frac{-6}{6} - \frac{-1}{2} $$ Correct Answer $$ \frac{-1}{2}$$ or -0.5

4.	Fractions 2 Simplify the following expression: $$ \frac{\frac{-6}{5}}{\frac{4}{3}} $$ Correct Answer $$ \frac{-9}{10}$$ or -0.9

5.	Significant figures 1. Write the following to 5 significant figures: 48.141209 Correct Answer 48.141 or $$4.8141\times10^{1}$$ 2. Write the following to 2 significant figures: 0.57495160 Correct Answer 0.57 or $$5.7\times10^{-1}$$

6.	Standard Form 1. Write the following in standard form to 5 significant digits: 10.5075 Correct Answer $$1.0508\times10^{1}$$ 2. Write the following in standard form to 4 significant digits: 0.000280245 Correct Answer $$2.802\times10^{-4}$$

7.	Significant figures 1. Write the following in preferred standard form to 2 significant digits: 0.000003659 Correct Answer $$3.7\times10^{-6}$$ 2. Write the following in preferred standard form to 3 significant digits: 0.10058 Correct Answer $$101\times10^{-3}$$

8.	Simplify 2 Simplify the following expression: $$ 2\left(5 - -5\right)\frac{2 + -6}{-4(-3)} $$ Correct Answer $$ \frac{-20}{3}$$ or -6.66667

9.	Simplify 1 Simplify the following expression: $$ \left(-2\times2 - 2(-3)\right)2\left(-5 - 6\right) $$ Correct Answer $$ -44$$ or -44.0000

10.	Simplify 2 Simplify the following expression: $$ \frac{2(-5)6}{5(-2) + 5 - -4} $$ Correct Answer $$ 60$$ or 60.0000